I.S. EN ISO 15156-2:2015&LC:2015

National Foreword
European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviated terms
5 Purchasing information
6 Factors affecting the behaviour of carbon and low
  alloy steels in H2Scontaining environments
7 Qualification and selection of carbon and low-alloy
  steels with resistance to SSC, SOHIC and SZC
8 Evaluation of carbon and low alloy steels for their
  resistance to HIC/SWC
9 Marking, labelling, and documentation
Annex A (normative) - SSC-resistant carbon and low
        alloy steels (and requirements and recommendations
        for the use of cast irons)
Annex B (normative) - Qualification of carbon and low-alloy
        steels for H[2]S service by laboratory testing
Annex C (informative) - Determination of H[2]S partial
        pressure
Annex D (informative) - Recommendations for determining p[H]
Annex E (informative) - Information that should be supplied
        for material purchasing
Bibliography

Provides requirements and recommendations for the selection and qualification of carbon and low-alloy steels for service in equipment used in oil and natural gas production and natural gas treatment plants in H[2]S-containing environments, whose failure can pose a risk to the health and safety of the public and personnel or to the environment.